I used to free feed. But we had a really bad year with mice last year. I also discovered that I was feeding squirrels, rabbits, wild birds, my own dogs, feral cats, you name it. So now I have figured out how much food they really need daily (I check in on them when I close the pop door, if there is food left I feed less, if their crops are too small I feed a bit more the next day until I got it dialed in). I let them forage early in the day, mainly because I have to leave for work in the dark. So I open the pop door and throw them the kitchen scraps before I leave and let them eat weeds and bugs until I come home for lunch or at the end of my day 4PM. Then they get their layer feed while I collect eggs and check water, poop board, etc. Generally they don't finish their feed until about one hour before going to roost. Also, I have ISA browns so I went to the Hendrix Genetics website (Hendrix holds the patent on ISA's) and they indicated that best egg production is achieved by feeding later in the day for the ISA's.